Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4398480 | Journal of Great Lakes Research | 2012 | 10 Pages |
Abstract
⺠P loading to Lake Erie over decades has led to cultural eutrophication. ⺠We estimated P inputs to 18 Lake Erie watersheds from 1935 to 2007. ⺠Fertilizer use increased and then declined after the 1970s, while crop exports rose. ⺠Over time, river P export varies mainly with water discharge. ⺠River export as a fraction of watershed P inputs appears to have recently increased.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth and Planetary Sciences (General)
Authors
Haejin Han, J. David Allan, Nathan S. Bosch,